1-Benzoxepin-5(2H)-one, 3,4-dihydro-4-((4-methoxyphenyl)methylene)-6,8,9-trimethyl- 124392-68-3 3,4-Dihydro-4-((4-methoxyphenyl)methylene)-6,8,9-trimethyl-1-benzoxepin-5(2H)-one BRN 4519397